Seam for sewed articles.



S. G. TATE.

SEAM FOR SEWED ARTICLES.

APP'ucAnon FILED use. 24. 1915,

1,293,576; gtented Feb. 4, 1919.

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UN ED STATES SAMUEL enonen TATE, or oI'IIcnGo, ILLINoIs, AssIGNon To UNIoN SPECIAL MAcHINE' COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.

SEA M FOR SEWEID ARTICLES.

To all whom it may concern Be it known that I, SAMUEL GEORGE TATE, a citizen of the United States, residing at Chicago, in the county of- Cook, State of Illinois, have invented certain new and useful Improvements in Seams for Sewed Articles, of which the following is ardescrip tion, reference being had to the accompanya ing drawing and to the figures of reference An object of the invention is to provide a seam having a plurality of needle threads formed into a series of parallel rows of needle thread loops wherein-certain of the needle threads on the upper face of the fabric between adjacent loops of certain rows are extended laterallyand disposed in overlapped relation and concatenated with other.

needle threads, and wherein a single thread concatenates with allthe needle thread loops on the under face of the fabric, whereby a relatively wide flat seam is produced in which the connectingthreads onthe upper face of the fabric are formed from the needle threads and inwhich the connecting threads on the under face of'the fabric are formed from a single looper thread.

In its broadest aspect, the invention con-' sists in concatenation and arrangement of threads with respect to a fabric generally under which is included. the use of the seam applied for ornamental purposes only on the fiat face of a fabric'or at the edge of a fabric where the seam may also form the purpose of an artificial selvage. In a more restricted and very important aspect, the invention includes the same concatenationand arrangement when applied to two fabrics or fabric sections whose edges are slightly over-' lapper or abutted without overlapping, in which event certain of the stitches or loops are anchored in respect to the fabric sections and the raw' edges of the fabric sections are covered by certain of the threads.

In the drawings Figure 1 is aplan-view 'showlng, more or 5 less diagrammatically and on an enlarged Specification of Letters Patent.

Application filed December 24, 1915. Serial No. 68,518. I

Patented Feb. 4., iaiaj scale, my improved seam joining abutting edges of fabric sections;

Fig. 2 is a bottom plan view of the same;

Fig. 3 is a transverse sectional View of the seam shown in Fig. 1;

Fig. 4 is a view, similar-to Fig. 3, but showing the edges of the fabric sections overlapped and penetrated by the needle thread loops of the inner rows of needle thread loops;

Fig. 5 is a View, similar to Fig. 3, but showing the threads utilized for forming an edging on a fabric; and

Fig. 6 is a similar view, but showing the threads utilized for forming an ornamentation on the body of the fabric.

In Figs. 1 to 3, inclusive, of the drawings, I have shown my improved seam as used for joining abutting edges of fabric sections a and b, said sections being abutted at c. As shown in the drawings, the seam is composed of four needle threads and one looper thread. The needle thread 1 is formed 7 into a series of loops 2. These loops are passed through the fabric section a to the under face thereof. The needle thread?) is formed into a series of loops 4:, and these loops are passed through the fabric section b. The needle thread 5 is formed into a series of needle thread loops 6 which are passed through the fabric section a in a line between the meeting edges ofthe fabric sectlons and the row of needle thread loops formed by the needle thread 2. The needle thread 7 is formed into a series of loops 8 which are passed through the fabric section.

b in a line substantially the same distance from the meeting edges 0 as are the needle thread loops formed by the needle thread 2.

On the upper face of the fabric, the needle thread 1 between adjacent needle thread loops extends laterally and passes around the respective loops formed by the needle thread 3. In other words, the loops formed in the needle thread 3 in the construction.

of the seam pass down through these later ally extending loops formed bythe needle thread 1. The needle thread 7 between adjacent needle thread loops extends laterally needle thread .loops fOIIDBd by the needle thread 5. In other WOIClS, the loops formed by the needle thread 5 pass down through the laterally extending portions formed by the needle thread ,7.

The opposed needle thread loops of the needle'threads 3 and 5 are disposed in aline which passes substantially midway between lines passing through ad acent pairsof .opposed needle thread loops in the needle threads 1 and 7. The laterally extending portions of theneedle threads 1 and 7 therefore, are directly opposedto each other and one overlaps the other.. The needle threadsii and 5 cross over the-strands of the laterally extending portions of the needle threads 1 and 7 and tie the same down.

On the under face of the fabric sections,

thereis a single looper thread 8. As viewed in Fig. 2, the direction of the feed is indicated by the arrow. The -looper thread passes from the left to the right throughthe needle loops, indicatedat as. The looper is, of course, curved-so that the needles maybe set for forming simultaneously the needle loops positioned as above described and, at the 'same time,said looper will-cooperate one after another with said-needles. The end of each looperthread loop, indicated -at'9, will be locked by the next needle loop 8. One strand 1 of the looper thread extends longitudina'lly of :the seam, as at 10, so as to be entered by the next needle thread loop 4. The looper thread is also extended, as at 11, so as to be entered bythe next needle v10013 6 and the same strand of the looper :thread is likewiseextended,as at 12, toenter the next needle loop 2.

From the above description, it .will be apparent that '1 have provided a single thread zbeneath the fabric which forms cross threads extending transversely of the seam, and cross threads extendingmoreor less longitudinailly of the seam. This'llooper thread conoatenates with a'll the needlethread loops, and thecross threads above referred to, not only tie together the sections-of the fabric,

.but effectively cover the :loose ends of the threads at the abutted edges of the fabric sections. -'On the1upper face of :the fabric, '1 have interconnected the rows of needle thread loops by the laterally extending :portions 'of the need'lethreads so that I produce a seam'ihaving a plurality ofd'ovvs ofneedle thread loops whichare interconnectedon the upper face of the fabric without using any extra cross thread. The needle thread 'loops formed by the needle 1 threads :1 and 7 serve as anchoring'loops for making a strong and durable connection for the fabric sections. The laterally extending portions of the .needle ithreads not only .connect the fabric sections, ibut also effectively cover the loose endsloftheithreads at the abutting ed-gesof the fabric .sections. 'The overlapping of .made by four needles set in an are extending transversely of the line of feed, ,the center pair of needles being disposed in a plane in rear-of thefront-pair-of needles. The looper will move in an arc corresponding to the arc of the needles and, as above-noted,;will c ooperate with all-four needles. It will be understood, however, that from certain aspects of the invention two loopers might be used, one looper ,coijperating with the outerpair of nee'dlesand the otherwithth'e inner pair of needles.-

InFig. 4 of the drawings, I'have shown my improved arrangement of threads as used for uniting fabric sectio'ns wherein the edges ofthe fabric sections are overlapped, as at (Z, instead of being abutted. The sectionsare sufliciently overlapped so that the inner rows of theneedlethrea'd loops pe-netrate both fabric sections. This --greatly strengthens -theseam uniting-the fabric sections.

In Fig. 5 -of the drawings, I :have shown my improved arrangement of threads as utilized for forming an edging-on a-fabric. The loops of the outer TOW-Of IlGGdlB thread loops 7 pass overathe edge of the-fa-bricand not through the fabric? The loops o'f the other rows of needle thread loops enter the fabric, and-the c onnecting threads, above described, effectively eorer and-tie down all the loose 'cut ends of the. threads forming the fabric.

"In Fig. 6 of the drawings, ,1 have shown n1y{improvedarrangementof threads as used for forming anornamenta l seam. In this instance, the needle thread loops pass through the body =of a single fabric section. The threads are' laid and "concatenated precisely inthemanner described in connection with Figs. 1-to 3, inclusive,.'of the drawings.

The connected threads on the upper face of Havingthus described the invention, ,what

is claimed as-=new is':

11. 'l-Ina "seam, the COITlbIl'lFttlOD with a fabric, of :a plurality of spaced rows of needle -thread rloops projecting through 5tl18' fabric, and a single *looper thread concatenating with all-f-thern'eedle thread 'loops beneath the fabric, the needle threadsxonithe surface of the fabric entered iby the needle andgbetween adjacent loops o'-f:the.outer-.rows

respectively extending laterally in opposite directions and disposed in overlapping relation and concatenating with the loops of an intermediate row of needle thread loops.

2. In a seam, the combination with a fabric, of four spaced rows of needle thread loops projecting through the fabric, and a single looper thread concatenating with all the needle thread loops beneath the fabric, the needle threads between adjacent loops in the outer rows respectively extending laterally in opposite directions and disposed in overlapping relation and concatenating respectively with the loops of the inner row of needle thread loops farthest therefrom.

3. In a seam, the combination with a fabric, of four spaced rows of needle thread loops projecting through the fabric, and a single looper thread concatenating with all the needle thread loops beneath the fabric, the needle threads between adjacent loops in the outer rows respectively extending laterally in opposite directions and disposed in overlapping relation and concatenating respectively with the loops of the inner row of needle thread loops farthest therefrom, the needle threads forming the inner rows of needle thread loops overlying and tying down the laterally extending portions of the needle threads, forming the outer rows of needle thread Loops.

4:. Inaseam, the combination with abutted fabric sections, of four spaced rows of needle thread loops projecting through the fabric, the opposlte needle thread loops of the outer rows being respectively disposed in lines lying between adjacent lines passing through the opposed needle thread loops of the inner rows, and a single looper thread concatenating with all the needle thread loops beneath the fabric, the needle threads between adjacent loops of the outer rows respectively extending laterally across the juncture of the fabric sections in opposite directions and disposed in overlapping relation and concatenating with the loops of the inner row of needle thread loops farthest therefrom.

5. In a seam, the combination with abutted fabric sections, of four spaced rows of needle thread loops projecting through the fabric, the opposite needle thread loops of the outer rows being respectively disposed in lines lying between adjacent lines passing through the opposed needle thread loops of the inner rows, and a single looper thread concatenating with all the needle thread loops beneath the fabric, the needle threads between adj acent loops of the outer rows respectively extending laterally across the juncture of the fabric sections in opposite directions and disposed in overlapping relation and concatenating with the loops of the inner row of needle thread loops farthest therefrom, the needle threads forming the inner rows of needle thread loops overlying and tying down the laterally extended portions of the needle threads forming the outer rows of needle thread loops.

6. In a scam, the combination of fabric sections, stitches for joining and covering the edges of the fabric sections, said stitches comprising four parallel rows of needle thread loops projecting through the fabric sections, the opposed needle loops in the outer rows lying in lines located between lines passing through opposed needle loops in the inner rows, and a single looper thread concatenating with all of the needle loops beneath the fabric sections, the respective needle threads between adjacent loops in the outer rows extending laterally across the juncture of the fabric sections and in opposite directions and disposed in overlapping relation and concatenating respectively with the loops of the inner row of needle thread loops farthest therefrom, the needle threads forming the inner row of needle thread loops overlying and tying down said laterally extending portions of the needle threads forming the outer row of needle thread loops.

7 In a scam, the combination with a fabric, of four rows of needle thread loops projecting through the fabric, and means for interlocking the needle thread loops beneath the fabric, the needle threads between adjacent needle thread loops in the outer rows respectively extending in opposite directions and disposed in overlapping relation and concatenating respectively with the needle thread loops in the inner row farthest copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington; D. 0." 

